Product Features

This product is an 8-way relay module with dual Ethernet interface control specially designed for industrial environment applications. It has 8 switch inputs, adopts Modbus RTU / Modbus TCP protocol, supports network port cascade communication, supports PoE network port power supply, and ABS shell design. This product is easy to operate, has the characteristics of fast communication speed, stability, reliability, and security, and can be applied to various industrial control equipment or applications with high communication requirements.

• Dual Ethernet port design, supporting communication and PoE power supply cascading
  
• With flash-on and flash-off functions, the relay can be controlled by command to automatically close after being opened for a period of time
  
• Supports DC 7V~36V wide voltage power supply and PoE Ethernet power supply
  
• Supports controlling relays via MQTT protocol and provides Alibaba Cloud MQTT application examples
  
• Onboard optocoupler isolation to avoid interference from relay high voltage circuits
  
• Adopting special relay driver chip, with built-in freewheeling diode protection, the driving ability is stronger and more stable
  
• The switch input has bidirectional optocoupler isolation, supports passive and active switch input, built-in de-jitter algorithm, and the relay supports switch input linkage mode or flip mode control
  
• Onboard anti-reverse connection circuit to prevent the positive and negative poles from being reversed and burning the circuit
  
• Use high-quality relays to allow access to loads: ≤10A 250V AC or ≤10A 30V DC
  
• Rail-type ABS protective housing, easy to install and use, safer with housing
  
• Four external LED indicators and a network port indicator light make it easy to check the MCU status and signal receiving and sending status

Basic Functions

Supports sending Modbus protocol instructions via Ethernet to read switch inputs.
Thus, the relay output is controlled according to the input

Using Modbus protocol
Support multiple communication modes

Support TCP server, TCP client, UDP mode, UDP multicast, MQTT,
Support Modbus RTU protocol and Modbus TCP protocol

Multiple configuration methods

Support software configuration, Web browser configuration,
Support DHCP to dynamically obtain IP, DNS protocol to connect to domain name server address

Multiple power supply methods, wide voltage input

Power plug type: directly use the power plug to supply power,
Terminal power supply: DC 7V~36V wide voltage range input,
PoE Power over Ethernet: Applicable to IEEE 802.3af PoE standard

This product does not have an external power supply by default. If necessary, you can choose: 12V power supply

Switch input

Built-in bidirectional optocoupler isolation,
Supports passive switch (dry contact) and active switch (wet contact) input

Ports and indicators

With a variety of indicator lights, it is convenient to check the working status of the module

Multiple modes to adapt to various automation scenarios

The relay supports multiple mode control, and each channel supports independent setting of control mode

Note: Except linkage mode, other modes also support controlling relays through commands.

Supports network port cascade communication and PoE cascade power supply

Guide rail housing design

Rail-type ABS protective housing, easy to install and use, safer with housing

Application Scenario

Products

Product size